Source: Xinhua Net
Tianjin, October 6 (Xinhua) -- "On the leaves of Xiao Shutong, the moon dew is first grouped. The "2021 Chinese Astronomical Almanac" shows that at 9:39 Beijing time on October 8, the "cold dew" festival will be ushered in. At this time, the lotus defeat cicadas are gagging, the leaves of the tung are yellow, the frost shops are thousands of miles, and the hong geese return to the south, showing a late autumn scene.
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Luo Shuwei, a historian and researcher at the Tianjin Academy of Social Sciences, said that on October 7, 8 or 9 of the Gregorian calendar every year, the sun reaches 195 degrees of ecliptic longitude, which begins the "cold dew" festival. At this time, the angle of sunlight exposure in the northern hemisphere is significantly tilted, the sunlight received by the ground is significantly reduced, the daytime autumn is high and cool, and the night is cold as frost, so "cold dew" becomes the first of the twenty-four solar terms with the word "cold".
"Cold dew, cold dew everywhere". According to the observation of nature, the ancients divided the "cold dew" into three waits: one waited for the guests of the wild geese; the second waited for the finches to enter the water as clams; and the three waiting chrysanthemums had yellow flowers. This means that at this time, the geese fly south, the birds are gone, and the chrysanthemums are blooming.
Since "cold dew" is the transition and transition of the climate from cool to cold, compared with "white dew", the climate during "cold dew" is cooler and the temperature is lower, marking the arrival of late autumn. "The dew is cold, it will condense", and even the first frost can be seen, so the solar terms after the "cold dew" are "frost falls".
How should health care be maintained during the "cold dew" season? Luo Shuwei combined folk traditions and the advice of health experts to say that "cold dew" is just the alternation of heat and cold, the yang qi gradually recedes, the yin qi gradually arises, and the physiological activities of people must adapt to the laws of nature to ensure the balance of yin and yang in the body. It is very important for the public to scientifically arrange food, clothing, shelter and transportation, so that the body can adapt to climate change at the same time.
Cold and cold is the main cause of colds at this time, "cold exposed feet are not exposed", we must pay attention to adding clothes at any time, pay attention to foot warmth, wear shoes and socks with good warm performance, adhere to warm water bath foot and acupuncture point massage, promote blood circulation.
Strengthen outdoor exercise and perseverance to enhance physical fitness. The elderly should walk, jogg, play tai chi, young and middle-aged people can run, climb the mountain, play ball, etc.; on weekdays, we should pay attention to the combination of work and leisure, go to bed early and get up early, and ensure adequate sleep; we must also learn to maintain a good attitude, guide by the situation, vent the feelings of depression, and cultivate an optimistic and open-minded mind.
"In the golden autumn, the dry gas is ordered." Dietary conditioning should follow the principle of "nourishing yin and preventing dryness, moisturizing the lungs and stomach, and balancing the five tastes", appropriately eating more sweet, light and moist food, eating less spicy, in order to prevent dry throat and dry mouth, and dry and juicy various fruits, when the first choice. Often eat radish, winter melon, cabbage, lotus root and beans, kelp, seaweed, white fungus, sesame, dairy products, etc., which can not only quench thirst, moisturize the lungs and clear the heart, but also benefit the intestines and detoxification, adjust blood pressure, and calm the mind.